Rectilinear Propagation of Light
Physics ⇒ Light and Optics
Rectilinear Propagation of Light starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Rectilinear Propagation of Light.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 8
A student places a book in front of a torch and observes a shadow on the wall. Which property of light is being demonstrated?
A torch is shone through three holes in three cardboards placed in a straight line. If the middle cardboard is slightly moved, what will happen to the light seen through the last hole?
Describe how the rectilinear propagation of light helps in the formation of a lunar eclipse.
Describe how the size of a shadow changes when the distance between the object and the light source increases.
Describe what happens to the path of light when it passes from air into water at an angle.
Explain why a pinhole camera produces an inverted image.
Explain why the shadow of an object becomes blurry when the light source is large.
Explain why we cannot see around corners.
Explain why we cannot see the sun at night even though it is still present in the sky.
If three cardboards with holes in the center are placed in a straight line and a light source is placed behind them, what will you observe if you look through the holes?
State one experiment that can be performed to show that light travels in a straight line.
What happens to the shadow of an object if the light source is moved closer to the object?
What is a shadow?
What is meant by the rectilinear propagation of light?
What is the penumbra?
Why do shadows have sharp edges when the source of light is small and point-like?
Why do we not see our shadow at night when there is no light source?
